http://www.overclock.net/f/61/water-cooling
If you're looking for parts, then modmymods.com and performance-pcs.com are the best imo. I get the barrow fittings from modmymods and got the barrow reservoir from there too, everything else from ppcs.
Most beginners usually go with a full EKWB build, so you might wanna check out ekwb.com as well. They're not bad, and they make it easy to put a build together on their site. I don't really like the way their stuff looks and there's better stuff out there.
Also, thermaltake is trash...